> On Wed, 1 Apr 2009 07:49:41 +0200, Hans Verkuil <[email protected]> said:
>> On Wednesday 01 April 2009 06:32:55 Christopher Neufeld wrote:
>
>>> I've got KnoppMyth for my mythtv box, running a 2.6.23 kernel that's
>>> about 9 months old.
>>>
>>> Running the command:
>>> # v4l2-ctl --get-sliced-vbi-out-cap
>>> produces no output.
>
>> No, it's working. You have to use 'v4l2-ctl -c stream_vbi_format=1' to
>> enable it.
>
>> That said, sliced VBI was broken for quite some time, i.e. it would
>> produce
>> garbled closed captions. That was fixed in 2.6.27.
>
>> And I don't know where you got v4l2-ctl from, but a bug in that program
>> relating to --get-sliced-vbi-out-cap was fixed October 2007. It seems
>> you
>> have that buggy v4l2-ctl version.
>
> Well, I upgraded again, to KnoppMyth's new character, LinHES R6.00.07.
>
> The new kernel is a 2.6.28 kernel. However, I haven't seen any change in
> the behaviour I described above. To be sure, I downloaded
> ivtv-utils-1.3.0
> directly from
> http://dl.ivtvdriver.org/ivtv/archive/1.3.x/ivtv-utils-1.3.0.tar.gz
> and compiled a v4l2-ctl binary.
>
> Here are three consecutive commands and their outputs.
>
> # ./v4l2-ctl -b cc --verbose
> VIDIOC_QUERYCAP: ok
> VIDIOC_S_FMT: ok
>
> # ./v4l2-ctl -c stream_vbi_format=1 --verbose
> VIDIOC_QUERYCAP: ok
> VIDIOC_S_EXT_CTRLS: ok
>
> # ./v4l2-ctl --get-sliced-vbi-out-cap --verbose
> VIDIOC_QUERYCAP: ok
> VIDIOC_G_SLICED_VBI_CAP: failed: Invalid argument
--get-sliced-vbi-out-cap? You want --get-sliced-vbi-cap. The former is for
the output on a PVR-350.
Regards,
Hans
>
>
> modinfo ivtv shows that the version is 1.4.0.
>
>
> Is there something I can do to diagnose this problem?
>
> --
> Christopher Neufeld
> Home page: http://www.cneufeld.ca/neufeld
> "Don't edit reality for the sake of simplicity"
>
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>
--
Hans Verkuil - video4linux developer - sponsored by TANDBERG
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